About filters

You
can use filters to clean up or retouch photos. You can also use
filters to apply special art effects or create unique transformations
using distortion effects. In addition to the filters provided by
Adobe, some filters provided by third-party developers are available
as plug-ins. Once installed, these plug-in filters appear at the
bottom of the Filter lists.

Filters can radically change the mood of a photo or image.

You can apply filters in any of three ways:

Filter menu

Contains all of the available filters and lets you apply
filters individually.

Filter Gallery

Displays thumbnail examples of what each filter does, like
the panel. The Filter Gallery lets you apply filters cumulatively
and apply individual filters more than once. You can also rearrange
filters and change the settings of each filter you’ve applied to
achieve the effect you want. Because it is so flexible, the Filter
Gallery is often the best choice for applying filters. However,
not all filters listed in the Filter menu are available in the Filter
Gallery.

Filters panel

Displays thumbnail examples of what each filter listed in the Filter menu does. The Filters panel allows you to apply filters individually to a photo in the Expert view.

Tips for applying filters

The following
information can help you understand the process of applying filters
to your images.

Preview the filter’s result. Applying
filters to a large image can be time-consuming. It’s quicker to
preview what the filter does in the Filter Gallery. Most filters
also let you preview their result in the Filter Options dialog box
and the document window. You can then choose to apply the filter
or cancel the operation without losing time.

Filters apply only to the active part of an image. Filters
affect only the active, visible layer or a selected area of the
layer.

Filters don’t work on all images. You can’t use some filters
on images in grayscale mode, or any filters on images in bitmap
or indexed-color mode. Many filters don’t work on 16‑bit images.

You can reapply the previous filter. The last filter you
applied appears at the top of the Filter menu. You can reapply it
with the same settings you last used to further enhance the image.

Tips for creating visual effects with filters

Use
the following techniques to achieve special visual results with
filters:

Feature the filter edges. If you’re applying
a filter to a selected area, you can soften the edges of the filter
effect by feathering the selection before you apply the filter.

Apply filters in succession to build up effects. You can
apply filters to individual layers or to several layers in succession
to build up an effect. Choosing different blending modes in the
Layers panel blends the effect. For a filter to affect a layer,
the layer must be visible and must contain pixels.

Create textures and backgrounds. By applying filters to solid-color
or grayscale images, you can generate a variety of backgrounds and
textures. You can then blur these textures. Although some filters
(for example, the Glass filter) have little or no visible effect
when applied to solid colors, others produce interesting effects.
For such colors, you can use Add Noise, Chalk & Charcoal, Clouds,
Conté Crayon, Difference Clouds, Glass, Graphic Pen, Halftone Pattern, Mezzotint,
Note Paper, Pointillize, Reticulation, Rough Pastels, Sponge, or Underpainting.
You can also use any of the filters in the Texture submenu.

Improve image quality and consistency. You can disguise faults,
alter or enhance images, or make a series of images look similar
by applying the same filter to each.

Apply a filter

Choose
the area you want to apply the filter to:

To apply a filter to an entire layer, deselect
any selected areas, and then select the layer in the Layers panel.

To apply a filter to a portion of a layer, use any
selection tool to select an area.

Choose how to apply the filter:

To use the Filter gallery, choose Filter > Filter Gallery, select a category, and click the filter you want to apply.

To use the Filters panel, choose Window > Filters, select a category, and double-click the filter you want to apply.

To use the Filter menu, choose Filter, then choose a submenu followed by the filter you want to apply. If a filter name is followed by ellipses (…), a Filter Options dialog box appears.

If a dialog box appears, enter values or select options.

If available, select the Preview option to preview the
filter in the document window. Depending on the filter and how you
are applying it, use one of the following methods to preview the
filter:

Use the + button or - button under the
preview window to zoom in or zoom out.

Click-drag within the preview window to center a
specific area of the image in the window.

Click the Show/Hide button at
the top of the dialog box to hide the filter thumbnails. Hiding
the thumbnails expands the preview area.

Click the eye icon next
to a filter to hide the effect in the preview image.

If the dialog box contains sliders, hold down Alt (Option
in Mac OS) while dragging a slider to see a real-time preview (real-time
rendering).

Click in the image window to center a specific area of
the image in the preview window. (This may not work with all preview
windows.)

참고:

A blinking line beneath the preview size indicates
that the preview is being rendered.

If you are using the Filter Gallery, or the filter opens
in the Filter Gallery, do any of the following and click OK:

Click the New Effect Layer button at
the bottom of the dialog box and choose an additional filter to
apply. You can add multiple effect layers to apply multiple filters.

Rearrange applied filters by dragging a filter name
to another position in the list of applied filters at the bottom
of the dialog box. Rearranging the order of filters can dramatically
change the way your image looks.

Produce a painted or impressionistic effect by displacing
pixels and heightening contrast.

Texture filters

Give the appearance of depth or substance, or add an organic look.

Other filters

Let you create your own filter effects, modify masks, offset
a selection within an image, and make quick color adjustments.

Digimarc filter

Lets you read a Digimarc watermark.

Filter Gallery

The
Filter Gallery (Filter > Filter Gallery) lets you apply
filters cumulatively, and apply individual filters more than once.
You can also rearrange filters and change the settings of each filter
you’ve applied to achieve the effect you want. Because you can apply
more than one filter to an image when you use the Filter Gallery dialog
box, you have a lot of control over the way your image is affected
by each filter. The Filter Gallery is often the best choice for
applying filters because it’s flexible and easy to use.

Applying filters through the Filter Gallery

A. Original photo B. Photos
each with a single filter applied C. Three
filters applied cumulatively

However, not all filters are available from the Filter Gallery.
Some are available only as individual commands from the Filter menu.
Also, you cannot apply effects and Styles from the Filter Gallery,
as you can from the Effects panel.

Texture and glass surface options

The
Conté Crayon, Glass, Rough Pastels, Texturizer, and Underpainting
filters have texturizing options. These options make images appear
as if they were painted onto textures, such as canvas or brick,
or viewed through glass blocks.

Texture

Specifies the type of texture to apply. You can also click
Load Texture to
specify a Photoshop file.

Scaling

Increases or decreases the effect on the image surface.

Relief (if available)

Adjusts the depth of the texture’s surface.

Light (if available)

Sets the direction of the light source on the image.

Invert

Reverses the surface’s light and dark colors.

Improve performance with filters
and effects

Some
filters and effects are memory intensive, especially when applied
to high-resolution images. You can use these techniques to improve
performance:

Try filters and settings on a small selected area of the image.

Try filters and settings on a smaller, resized copy of your image. When you’re satisfied with the results, apply the filter with the same settings to your original image.

Free up memory before running the filter or effect by clearing the clipboard, the undo history, or both. Choose Edit > Clear > [command].